. >>> mitt romney trying to make up ground in key battleground states. he'll launch a bus tour through ohio and virginia. recent polls show the republican presidential nominee trailing president obama in both states. romney will begin the day in another state in colorado. he'll campaign in pueblo, colorado. romney held this rally yesterday in denver, which will host the first presidential debate next week. this ad starts airing today in ohio. the obama campaign is launching it, and it criticizes mitt romney over his comments about americans who don't pay income tax. the ad suggests romney come clean about the taxes he's paid in the past. it's a clear indication the obama campaign will make his republican opponent's finances a key issue in the coming weeks. >>> today the maryland public service commission will hold a hearing about a policy that allows utility companies to bill customers during the first 24 hours of a power outage. the commission is examining whether utilities should be banned from collecting the money. utilities have previously been allow